henrik.lundin 0d96ab7dc4 NetEq::GetPlayoutTimestamp returns empty during CNG
With this change, the return value from NetEq::GetPlayoutTimestamp is
empty if the latest call to NetEq::GetAudio resulted in comfort noise
(codec-internal or external) being played out. This is because the
playout timestamp is not updated during CNG, and can therefore not be
trusted.

A few unit tests were updated to reflect the change.

BUG=webrtc:5669

Review URL: https://codereview.webrtc.org/1861303002

Cr-Commit-Position: refs/heads/master@{#12268}
2016-04-06 19:28:31 +00:00
..
2016-02-10 10:47:56 +00:00
2014-06-09 08:10:28 +00:00